Apparatus

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sensors Mode-S transponder

A9FA0C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N742AV · AIRBUS A-320 · operated by UMB BANK NA TRUSTEE

Hex
A9FA0C
Octal
52375014
Decimal
11,139,596
Country
US
Tail
N742AV
Type
A320
No current signal · last broadcast 1h ago
Flights observed
268
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A9FA0C.

Country allocation

The ICAO 24-bit address A9FA0C falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
AVA127 - 8 2026-07-06
AVA187 - 6 2026-07-06
AVA186 - 6 2026-07-06
AVA126 - 6 2026-07-06
AVA9781 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-25
AVA8440 - 4 2026-07-14
AVA023 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-23
AVR5200 Avianca Express 3 2026-05-29
AVR4892 - 3 2026-07-07
AVR4891 - 3 2026-07-07
AVA9780 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-18
AVA9470 - 3 2026-06-14
AVA9350 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-07
AVA9325 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-08
AVA9201 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-14
AVA8563 - 3 2026-06-14
AVA8403 - 3 2026-07-15
AVA191 - 3 2026-07-10
TAI385 - 2 2026-07-01
AVA9717 - 2 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 AVA8403 - Jul 15, 02:45 UTCJul 15, 03:00 UTC15m
2026-07-14 AVA8440 - Jul 14, 22:25 UTCJul 14, 22:30 UTC5m
2026-07-14 AVA220 - Jul 14, 14:55 UTCJul 14, 18:30 UTC3h 35m
2026-07-14 AVA8404 - Jul 14, 11:40 UTCJul 14, 11:50 UTC10m
2026-07-14 AVA8403 - Jul 14, 10:10 UTCJul 14, 10:25 UTC15m
2026-07-14 AVA8441 - Jul 14, 00:40 UTCJul 14, 00:50 UTC10m
2026-07-13 AVA8440 - Jul 13, 22:15 UTCJul 13, 22:35 UTC20m
2026-07-13 AVA220 - Jul 13, 14:20 UTCJul 13, 18:10 UTC3h 50m
2026-07-13 AVA8404 - Jul 13, 11:30 UTCJul 13, 11:40 UTC10m
2026-07-13 AVA8403 - Jul 13, 02:45 UTCJul 13, 03:01 UTC15m
2026-07-13 AVA8441 - Jul 13, 00:50 UTCJul 13, 01:01 UTC10m
2026-07-12 AVA8440 - Jul 12, 22:30 UTCJul 12, 22:35 UTC5m
2026-07-12 AVA8440 - Jul 12, 21:15 UTCJul 12, 21:25 UTC10m
2026-07-12 AVA221 - Jul 12, 14:25 UTCJul 12, 19:40 UTC5h 15m
2026-07-12 AVA9259 - Jul 12, 03:35 UTCJul 12, 03:45 UTC10m
2026-07-11 AVA159 - Jul 11, 19:45 UTCJul 11, 19:55 UTC10m
2026-07-11 AVA9717 - Jul 11, 17:10 UTCJul 11, 17:20 UTC10m
2026-07-10 AVA191 - Jul 10, 23:25 UTCJul 11, 02:20 UTC2h 55m
2026-07-10 AVA190 - Jul 10, 21:00 UTCJul 10, 21:35 UTC35m
2026-07-10 AVA043 - Jul 10, 10:55 UTCJul 10, 13:25 UTC2h 30m
2026-07-10 AVA042 - Jul 10, 06:15 UTCJul 10, 08:40 UTC2h 25m
2026-07-10 AVA042 - Jul 10, 03:50 UTCJul 10, 04:00 UTC10m
2026-07-10 AVA191 - Jul 10, 01:50 UTCJul 10, 02:00 UTC10m
2026-07-09 AVA191 - Jul 9, 23:10 UTCJul 9, 23:45 UTC35m
2026-07-09 AVA190 - Jul 9, 20:35 UTCJul 9, 21:20 UTC45m
2026-07-09 AVA9563 - Jul 9, 16:35 UTCJul 9, 16:45 UTC10m
2026-07-09 AVA9373 - Jul 9, 10:20 UTCJul 9, 12:45 UTC2h 25m
2026-07-08 AVA9347 - Jul 8, 16:05 UTCJul 8, 16:15 UTC10m
2026-07-08 AVA9348 - Jul 8, 14:45 UTCJul 8, 14:55 UTC10m
2026-07-08 AVA9337 - Jul 8, 01:05 UTCJul 8, 01:20 UTC15m
2026-07-07 AVA9326 - Jul 7, 23:15 UTCJul 7, 23:30 UTC15m
2026-07-07 AVR4892 - Jul 7, 19:40 UTCJul 7, 19:50 UTC10m
2026-07-07 AVR4891 - Jul 7, 15:35 UTCJul 7, 15:50 UTC15m
2026-07-07 AVA9785 - Jul 7, 13:40 UTCJul 7, 14:20 UTC40m
2026-07-06 AVA9472 - Jul 6, 23:55 UTCJul 7, 00:10 UTC15m
2026-07-06 AVA127 - Jul 6, 22:00 UTCJul 6, 22:20 UTC20m
2026-07-06 AVA127 - Jul 6, 19:15 UTCJul 6, 19:40 UTC25m
2026-07-06 AVA126 - Jul 6, 16:00 UTCJul 6, 16:25 UTC25m
2026-07-06 AVA187 - Jul 6, 07:05 UTCJul 6, 09:30 UTC2h 25m
2026-07-06 AVA186 BOG → MEX Jul 6, 00:55 UTCJul 6, 05:00 UTC4h 5m
2026-07-04 AVA053 - Jul 4, 21:15 UTCJul 4, 21:30 UTC15m
2026-07-03 AVA051 - Jul 3, 02:05 UTCJul 3, 02:20 UTC15m
2026-07-01 TAI385 - Jul 1, 16:40 UTCJul 1, 19:55 UTC3h 15m
2026-06-30 AVA128 - Jun 30, 14:35 UTCJun 30, 18:30 UTC3h 55m
2026-06-30 AVA081 - Jun 30, 05:30 UTCJun 30, 06:00 UTC30m
2026-06-29 TAI385 - Jun 29, 16:04 UTCJun 29, 19:20 UTC3h 15m
2026-06-28 AVA039 MIA → CLO Jun 28, 22:24 UTCJun 29, 19:20 UTC20h 55m
2026-06-28 AVA063 JFK → CLO Jun 28, 10:00 UTCJun 28, 20:25 UTC10h 25m
2026-06-27 AVA062 CLO → JFK Jun 27, 22:15 UTCJun 28, 08:05 UTC9h 50m
2026-06-27 AVA063 JFK → CLO Jun 27, 10:00 UTCJun 27, 20:04 UTC10h 5m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N742AV page for operator, model, and routing details .

Mode-S A9FA0C frequently asked

What is Mode-S code A9FA0C?
A9FA0C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N742AV.
Where is Mode-S A9FA0C registered?
Mode-S code A9FA0C is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A9FA0C broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9FA0C, octal 52375014, decimal 11,139,596.
What flights does A9FA0C operate?
Mode-S A9FA0C has broadcast 20 distinct callsigns, including AVA127, AVA187, AVA186, AVA126, AVA9781.